What is gene expression, Biology

Assignment Help:

What is Gene Expression ?

Gene expression is the process by which a gene is activated to produce a certain protein. Cells are able to respond to changes in the environment in two ways: 1.) by controlling the production of enzyme molecules that cause expression of a gene; and 2.) by controlling the activities of enzymes that are already present through the use of feedback mechanisms.

The control mechanism for gene expression is very different in prokaryotic cells than in eukaryotes.
The way in which a specific gene expresses itself is of particular interest to scientists. Many diseases have been found to be genetically-based. Therefore, the ability to control the form and behavior of a cell or an organism would prove especially useful in the prevention and cure of disease.

One area that holds real promise in the near future is in the cloning of new tissues or organs to replace those that have become injured or diseased. Cells from the body can be used to produce clones because each cell contains a full complement of DNA. Cloning involves removal of a cell from an organism, and then providing that cell with all of the nutrients, gases, and physical conditions necessary for its growth, development, and reproduction.

The larger question is: since each and every cell has the same DNA information, what are the determining factors that cause a newly formed skin cell to form the specialized structures that enable it to perform the functions of skin, rather than, say, the types of protein structures that characterize muscle cells?

 


Related Discussions:- What is gene expression

Importance of human milk for infant growth and development, Define the Impo...

Define the Importance of Human Milk for Infant Growth and Development? Let us now look at the value of human milk in promoting infant growth and development.  Success of lactat

Biotechnology in characterization of animal biodiversity, Use of biotechnol...

Use of biotechnology in characterization of animal biodiversity. Genetic uniqueness of populations is measured by the relative genetic distances of such populations from each o

Define the obesity in children, Define the Obesity in Children? It is d...

Define the Obesity in Children? It is difficult to measure overweight or obesity in children and adolescents because they grow and mature at different rates. Weight status in c

Reaction of the futile cycle, Reaction of the futile cycle:- A) An  ade...

Reaction of the futile cycle:- A) An  adequate level of  cAMP  stimulates formation of  the  inactive  'D'  form  of glycogen synthase and the active form of phosphorylase. Thu

What is the function of the antidiuretic hormone, Q. What is the function o...

Q. What is the function of the antidiuretic hormone? Where it made and which is the stimuli that increase or reduce its secretion? The antidiuretic hormone is secreted by the h

Fungi, Which type of reproductive structure has a better chance of survival...

Which type of reproductive structure has a better chance of survival if there was a sudden temperature change in its environment?

What would be a very wrong way to tell the difference, You have accidentall...

You have accidentally mixed up 3 beakers of solutions. One is water. One is pure methanol. One is pure phosphoric acid. What would be a very wrong way to tell the difference betwee

What is signifying by “gene locus”?, What is signifying by "gene locus"? ...

What is signifying by "gene locus"? The Gene locus (locus means place) is the location of a gene in a chromosome that is the position of the gene in a DNA molecule

Explain wire loop and tube method, Explain Wire loop and Tube Method 1....

Explain Wire loop and Tube Method 1.  Use a 25-gauge dental injection needle, cut to remove beveled end 2. Both ends of-mm diameter steel ligature wire passed through the ne

State in detail about dark adaptation, State in detail about Dark Adaptatio...

State in detail about Dark Adaptation Dark adaptation is a phenomenon by which retina and pupil react to decreased illumination. Test is performed using Goldmann-Weeke's adapto

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd